Improvement in petroleum-lamps



DETTE. Patmeum Lamp.

NQ. 198,085. vPatented Dejo. 11,1877.

UNITED 'STATES PATENT OEEToE.

WILHELM DETTE, OF BERLIN, PRUSSIA, GERMANY, ASSIGNOR TO BENNETT B. SCHNEIDER, OF NEW YORK CITY.

IMPROVEMENT IN PETROLEUM-LAMPS.

Specification forming part of Letters Patent No. 198,085, dated December 11, 1877 application filed October 26, 1877.

To all whom 'it may concern Be it known that I, WILHELM DETTE, of the city of Berlin, in the Kingdom of Prussia and German Empire, have invented certain new and useful Improvements in Petroleum- Lamps, and I do hereby declare that the fol! lowing vis a full, clear, and exact description or chandeliers-in which the oil passes through a tube from a reservoir to a burner; and it consists 1n providing such tube at any point between the reservoir and the burner with an interior self-acting valve, arranged in such a manner that it will close toits seat if the lamp is tilted, and thus prevent a movement of oil from the reservoir which would cause an overflow of the wick-tube, as will be hereinafter morefully set forth.

In the annexed drawing, which fully illustrates my invention, and to which reference is made, Figure l is a side elevation of a studylamp embodying my invention, a part of the oilfconducting tube being broken away to show the interior valve. Fig. 2 is a detailed view of the valve and valve-seat, and Fig. 3 shows a modification in the construction of the valve.

Arepresents the oil-reservoir B, the burner, and G the intermediate connecting-tube, for conveying the oil from the reservoir to the burner.

At the point where the tube C unites with the burner B said tube is enlarged, forming a chamber, O, with aperture or seat a leading into the burner-tube. In the bottom of this chamber are two parallel ribs, b b, forming a track, upon which a ball-valve, D, can move a short distance back and fort The track b is very slightly inclined away from the seat a, so that the valve D will not normally be against the seat, but the oil can flow freely into the burner.

In case the lamp is suddenly tipped or tilted in any part of the hollow arm or tube connect? ing the reservoir and the wicktube.

The valve may also be constructed in various other ways. For instance, I may use a valve hinged at the top, as shown at D in Fig. 3, and closing against a seat, a, over-hanging toward the front sufficiently to leave a passage When the lamp or chandelier stan ds, or is hung perpendieularly. This valve also will close by the rush 'of the iiuid when the lamp is inclined.

I This invention is applicable to all lamps or chandeliers in which the oil passes through a tube from a reservoir to a burner.

I am aware that valves have been used in lamps between the reservoir and burner, and I do not broadly claim such device; but

vHaving thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, isv In a lamp or chandelier having a hollow arm or tube connecting a reservoir and a burner, a valve arranged at any point within such hollow arm or tube, operating independently of other devices by the Huid coming in Contact with said valve, substantially in the manner and for the purposes herein set forth.

mIn testimony that'I claim the foregoing as my own I affix my signature in presence of two witnesses.

WILHELM DETTE. Witnesses:

HERMANN KREIsMANN, EDWARD vP. MAcLEAN. f 

